Introduction
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Multi-cluster UC support is a critical requirement for many large customers and
is needed to support a variety of use cases. Primary Use Cases may include
supporting larger user capacities, enabling geo-clustering for multi-national
clients and supporting corporate segregation requirements. However, multi-cluster
implementations present several deployment and configuration challenges. These
include handling increased feature complexity, achieving consistent provisioning
standards, facilitating a standard dial plan scheme for centralized management,
catering for platform inheritance and systems integration, and providing seamless
user integrations.

This document serves as an overview of VOSS-4-UC’s current support for multi-cluster
customer deployments. It offers several best practice recommendations pertaining
to Global Directory Search, User Integrations, Day 2 User and Feature Provisioning,
Dial Plan Management and Overbuild, leveraging current field implementations and
internal test efforts. Furthermore, known caveated scenarios are clearly defined
with mitigating options suggested as far as possible.